And whether or not SL strictly fits some external definition of "grid
computing", we use the term Grid within Second Life, which is what the
OP was asking for.
In that context, the Second Life grid is the integrated system that
provides a networked collection of servers, some of which are
simulators that implement our presentation of land. Those are arranged
in the form of a rectangular mesh (but yes, it would be possible to
have a "grid" with only one simulator in it). In addition, the SL grid
provides a set of other services, including presence, inventory
management, and asset store, that integrate with but are independent
of the simulators.
Q
On Feb 5, 2009, at 11:55 AM, Escort DeFarge wrote:
I strongly support LL's decision to favor REST over WSDL (for many,
many reasons).
For sure, OGSA is definitely only one type of grid, but otoh that
does not make SL a "grid computing environment".
Wikipedia's Grid Computing entry has loosened considerably over the
last 3-4 years. To my mind/taste, when defining "grid computing",
the tighter and clearer definition stated in the short paper "What
is the Grid" (http://www-fp.mcs.anl.gov/~foster/Articles/WhatIsTheGrid.pdf
) remains a much more helpful and accurate definition. Of the three
checkpoints in that definition only (3) probably counts for SL's
current grid architecture, since the LL grid has resources under
central control (1), and is not open (2). (Though I note that the
AWG is definitely moving SL closer to this definition).
For most, I sure this is all an exercise in hair-splitting, but I
find it hard to state that SL is a grid computing environment (as
yet) but rather I would say that it is an highly distributed system
that includes a grid.
/esc
Meadhbh Hamrick (Infinity) wrote:
right. i think we're less in the WSDL camp and more in the REST
camp, so we might say that OGSA is a _type_ of a grid, but that we
adhere more to something like what's defined in http://en.wikipedia.org/wiki/Grid_computing
with REST semantics layered on top of our services.
On Feb 4, 2009, at 9:12 PM, Escort DeFarge wrote:
For an accurate definition -- start here...
http://en.wikipedia.org/wiki/Open_Grid_Services_Architecture
...the SL architecture doesn't actually conform to a strict
definition of "grid computing" as you'll soon see. However, the SL
grid does have one big thing going for it -- it works (mostly).
/esc
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